Below is a handy link to the DfE's website where you can download historical data relating to previous cohorts, such as school information, qualification, subject and EBacc performance, pupil destinations, and more!
To view historical guidance, select the appropriate year, then 'All of England', and click 'Continue'. Then, select KS4 qualification and subject data or 16 to 18 qualification and subject data, and after clicking 'Continue' a guidance document zip file should become available.